Calculator



FIG. 1 is a front elevational view of a calculator in an open position, showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a side elevational view of the other side thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view from above and one side of the calculator in the closed position. 

The ornamental design for a calculator, as shown and described. 